Coiling strip



E.T. LORIG COILING STRIP May 12, 1936.

Filed Feb. 13, 1953 [weniow bW/A/ T LOB/G I Patented May 12, 1936 UNITEDSTATES PATENT OFFICE comma swim I Edwin T. LoriggGa'ry, Ind., assignorto American Sheet and Tin Plate Company,

of New Jersey a corporation Application February 13,1933, Serial No.656,631

6 Claims. (Cl. 242-78) Figure 2 is a vertical cross-section from theline IIII of Figure 1.

The above shows a spool I mounted on a spindle l5 2 driven by a motor 3through a suitable reduction unit 4. The spool I is intended to receivethe tin plated metal strip in the form of a coil. If the protection 'offlanges is desired, a flanged spool might be substituted.

An elongated table 5 is pivotally mounted at right angles to the axis ofthe spool I so that one of. its ends swings adjacent thereto. This tableis surfaced with a carpet covered guide 6 for the purpose of preventingdamage to the strip when fed thereo-ver. It is also provided withadjustable lateral guides l which-restrain the strip and compel it topass truly onto the spool I. This adjustment might require thesubstitution of other sized guides for the one shown.

This table 5 includes an extending end 8 pro vided with cross-bars 9between which a strip of flexible material I0, such as spring steel, istautly held. This piece of material I is arranged to bear tangentiallyagainst the spool I and any strip which might be coiled thereon, thematerial's flexibility causing it to partially conform to the coilsshape. This is accomplished because of its mounting on the swinging endof the table spect to the spool I.

In operation, the strip is fed over the soft surface of the table 5 andonto the spool I. When this spool is rotated the strip begins to coilthereon. The carpet surfaced material I0 is constantly pressed againstthe circumferential surface of the coil being thus formed by the weightof the swinging table.

This frictional application of the taut material tangentially to thecoil insures the requisite 50 compactness. When the coil is fully formedon the spool I the swinging table is raised-by any suitable means andthe. spool removed. It is to be noticed that as the coils size increasesthe frictional restraint of the material Ill increases 55. because moreof its surface is brought tobear.

That is to say, the restraint is in increments dependent on the coilsdiameter so that a subwhich imparts a radial movement to it withrestantially uniform tightness results throughout the coil.

I claim:

1. A machine for coiling strip including the combination of a rotarycarrier, means for turning said carrier, means for feeding the striplongitudinally onto said can'ier to form a coil and frictional means forincreasingly restraining and radially pressing said strip at thecircumference of the coil being formed.

2. A machine for coiling strip including the combination of a rotarycarrier, means for turning said carrier, means for feeding the striplongitudinally onto said carrier to form a coil and a taut piece offlexible material arranged to be pressed substantially tangentiallyagainst the circumferential surface of the coil being formed.

3. A machine for coiling strip including the combination of a rotarycarrier, means for turning said carrier, an elongated table arranged ata right angle to said carrier with a swinging end adjacent thereto and aframe on the swinging end of said table and mounting'a taut piece offlexible material arranged so that swinging motion of the table willbring it into substantially tangential contact with said carrier and theouter surfaces of any strip convolutions thereon.

4. A machine .for coiling strip including the combination of a rotarycarrier, means for tuming said carrier, an elongated table arranged at aright angle to sa'd carrier with a swinging end adjacent thereto, acarpeted surface on said table for carrying the strip to be coiled, aframe on the swinging end of said table, a taut piece of spring steelmounted on said frame so that the swinging motion of the table willbring it into substantially tangential contact with said carrier on theouter surface of the strip convolutions thereon, and a carpeted surfacearranged on said spring steel for contact with the strips surface. 5. Amachinefor coiling strip including the combination of means for formingstrip into a coil and taut flexible material arranged for movement toand from strip being formed into a coil by said means and which istangentially fixed respecting said coil, said material being flat whenfree from said strip and being curved when in contact therewith.

6. A method of coiling relatively wide and thin strip metal on a rotarycarrier consisting in turning the carrier while feeding strip in a flatcondition thereonto and applying a frictional restraint to the flatstrip only at .the point where said strip'is being convoluted,said-frictional restraint increasing in proportion with the increasingdiameter of said strip.

. EDWIN T. IDRIG.

